On Thu, May 24, 2012 at 10:30 AM, Juan Orti Alcaine <j.orti.alcaine@xxxxxxxxx> wrote: > 2012/5/24 Gerry Reno <greno@xxxxxxxxxxx> >> >> What does Fedora do currently, if anything, to optimize for solid-state drives (SSD). >> >> Things like swap and logging can generate a huge number of writes. So I suppose those should maybe be placed on a >> rotating drive if one is available but if not does Fedora do anything to reduce the amount of writes? Or is everything >> related to SSD the responsibility of the user? >> > > Apart from correctly aligning the partitions, I think there are no > more optimizations done by Fedora. > I use a SSD and to get the best performance I use ext4 directly on the > partitions, without LVM, Luks, RAID, etc. Also, here are a few tips: > > - Mount options: > noatime to reduce writes. > discard if your unit supports TRIM Yeah those too make sense (even though realatime should be enough). > - Change the default scheduler: > I created /etc/rc.d/rc.local with: > > #!/bin/bash > /bin/echo noop > /sys/block/sda/queue/scheduler This does not gain you much and hurts in some workloads. > - Disable the readahead service: > systemctl disable systemd-readahead-collect.service > systemctl disable systemd-readahead-replay.service systemd should just do that by default (it disables it already when running on a VM). -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
